77493824216 has 16 divisors (see below), whose sum is σ = 153848033640. Its totient is φ = 36467681920.

The previous prime is 77493824203. The next prime is 77493824263. The reversal of 77493824216 is 61242839477.

It is a happy number.

It is a super-4 number, since 4×77493824216⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284903630 + ... + 284903901.

Almost surely, 2^77493824216 is an apocalyptic number.

It is an amenable number.

77493824216 is a deficient number, since it is larger than the sum of its proper divisors (76354209424).

77493824216 is a wasteful number, since it uses less digits than its factorization.

77493824216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569807554 (or 569807550 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 53.

The spelling of 77493824216 in words is "seventy-seven billion, four hundred ninety-three million, eight hundred twenty-four thousand, two hundred sixteen".